Essie Good As Gone is a new nail polish remover that's being launched in Sweden now in february. It contains acetone, which makes it effective, and vitamin c, which is supposed to help against staining and brighten you nails. I can't tell whether the vitamin c had any effect on my nails really, they were badly stained when I started using it and I can't say that's it's gotten any better after a few weeks use - but it has gotten worse either.